rock salt
柯林斯词典
1. N-UNCOUNT Rock salt is salt that is formed in the ground. It is obtained by mining. 巖鹽; 石鹽
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rock salt
剑桥词典
- salt that is taken from the ground , not the sea
巖鹽，石鹽 返回 rock salt
巖鹽，石鹽 返回 rock salt
巖鹽，石鹽 返回 rock salt
1. N-UNCOUNT Rock salt is salt that is formed in the ground. It is obtained by mining. 巖鹽; 石鹽